基于纳米四氧化三铁的光电化学传感器及其对过氧化氢的检测研究  

Fe_(3)O_(4) Nanomaterials Based Photoelectrochemical Sensor and Its Detection for Hydrogen Peroxide

作　　者：肖港 杨俏春 成林洋 曹胜利 廖文锦 孙鑫悦 任立儒[1] 岳钊[1,2] Xiao Gang;Yang Qiaochun;Cheng Linyang;Cao Shengli;Liao Wenjin;Sun Xinyue;Ren Liru;Yue Zhao(Department of Microelectronics,College of Electronic Information and Optical Engineering,Nankai University,Tianjin 300350,China;Tianjin Key Laboratory of Photoelectric Sensor and Sensor Network Technology,Tianjin 300350,China)

机构地区：[1]南开大学电子信息与光学工程学院,微电子系,天津300350 [2]天津市光电传感器与传感网络技术重点实验室,天津300350

出　　处：《南开大学学报（自然科学版）》2023年第4期50-54,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(61871240,61471207)。

摘　　要：为实现对过氧化氢的高灵敏度检测,合成了表面具有葡聚糖(dextran)配体的纳米四氧化三铁(Fe_(3)O_(4))材料,并将其应用于制备光电化学(photoelectrochemical,PEC)传感器.所合成的Fe_(3)O_(4)纳米材料不仅具有光电转换能力,而且表现出传统纳米材料所缺乏的对过氧化氢的直接催化性.同时利用Fe_(3)O_(4)纳米材料光电性能和催化特性制作的PEC传感器表现出对过氧化氢良好的传感特性,可以实现过氧化氢的传感检测.最终在0-4 mmol/L的过氧化氢浓度范围内,达到了2.39 nA/mmol·L^(-1)的灵敏度,以及0.13 mmol/L的最低检测限,实现了对过氧化氢的高灵敏度检测.In order to achieve high sensitivity detection of hydrogen peroxide,coated with dextran were synthesized and applied to the fabrication of photoelectrochemical(PEC)sensors.The results show that Fe_(3)O_(4) materials have both photoelectric property and direct catalytic properties to hydrogen peroxide which traditional nanomaterials don't have.The PEC sensors utilizing photoelectric property and catalytic properties of Fe_(3)O_(4) materials show good sensitivity to hydrogen peroxide.Finally,in the linear range of 0-4 mmol/L hydrogen peroxide concentration,the Fe_(3)O_(4) based PEC sensors achieve high sensitivity(2.39 nA/(mmol·L^(-1)))and low limit of detection of 0.13 mmol/L,which realize high sensitivity detection of hydrogen peroxide.

关 键 词：光电化学传感器 纳米四氧化三铁 过氧化氢 

分 类 号：TP212.3[自动化与计算机技术—检测技术与自动化装置]